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Metadata-Version: 2.1 Name: pyzstd Version: 0.15.3 Summary: Python bindings to Zstandard (zstd) compression library, the API is similar to Python's bz2/lzma/zlib modules. Home-page: https://github.com/animalize/pyzstd Author: Ma Lin Author-email: malincns@163.com License: The 3-Clause BSD License Keywords: zstandard zstd compression decompression compress decompress Classifier: Development Status :: 4 - Beta Classifier: Intended Audience :: Developers Classifier: Topic :: System :: Archiving :: Compression Classifier: License :: OSI Approved :: BSD License Classifier: Programming Language :: Python :: Implementation :: CPython Classifier: Programming Language :: Python :: Implementation :: PyPy Classifier: Programming Language :: Python :: 3.5 Classifier: Programming Language :: Python :: 3.6 Classifier: Programming Language :: Python :: 3.7 Classifier: Programming Language :: Python :: 3.8 Classifier: Programming Language :: Python :: 3.9 Classifier: Programming Language :: Python :: 3.10 Classifier: Programming Language :: Python :: 3.11 Requires-Python: >=3.5 Description-Content-Type: text/x-rst License-File: LICENSE Introduction ------------ Pyzstd module provides classes and functions for compressing and decompressing data, using Facebook's `Zstandard <http://www.zstd.net>`_ (or zstd as short name) algorithm. The API is similar to Python's bz2/lzma/zlib modules. Includes zstd v1.5.2 source code, can also dynamically link to zstd library provided by system, and has a CFFI implementation that can work with PyPy, see `this note <https://pyzstd.readthedocs.io/en/latest/#build-pyzstd>`_ for details. Links ----------- Documentation: https://pyzstd.readthedocs.io/en/latest GitHub: https://github.com/animalize/pyzstd Release note ------------ **0.15.3 (Aug 3, 2022)** Fix ``ZstdError`` object can't be pickled. **0.15.2 (Jan 22, 2022)** Update bundled zstd source code from v1.5.1 to `v1.5.2 <https://github.com/facebook/zstd/releases/tag/v1.5.2>`_. **0.15.1 (Dec 25, 2021)** #. Update bundled zstd source code from v1.5.0 to `v1.5.1 <https://github.com/facebook/zstd/releases/tag/v1.5.1>`_. #. Fix ``ZstdFile.write()`` / ``train_dict()`` / ``finalize_dict()`` may use wrong length for some buffer protocol objects, see `this issue <https://github.com/animalize/pyzstd/issues/4>`_. #. Two behavior changes: * Setting ``CParameter.nbWorkers`` to ``1`` now means "1-thread multi-threaded mode", rather than "single-threaded mode". * If the underlying zstd library doesn't support multi-threaded compression, no longer automatically fallback to "single-threaded mode", now raise a ``ZstdError`` exception. #. Add a module level variable `zstd_support_multithread <https://pyzstd.readthedocs.io/en/latest/#zstd_support_multithread>`_. #. Add a setup.py option ``--avx2``, see `this note <https://pyzstd.readthedocs.io/en/latest/#build-pyzstd>`_. **0.15.0 (May 18, 2021)** #. Update bundled zstd source code from v1.4.9 to `v1.5.0 <https://github.com/facebook/zstd/releases/tag/v1.5.0>`_. #. Some improvements, no API changes. **0.14.4 (Mar 24, 2021)** #. Add a CFFI implementation that can work with PyPy. #. Allow dynamically link to zstd library. **0.14.3 (Mar 4, 2021)** Update bundled zstd source code from v1.4.8 to `v1.4.9 <https://github.com/facebook/zstd/releases/tag/v1.4.9>`_. **0.14.2 (Feb 24, 2021)** #. Add two convenient functions: `compress_stream() <https://pyzstd.readthedocs.io/en/latest/#compress_stream>`_, `decompress_stream() <https://pyzstd.readthedocs.io/en/latest/#decompress_stream>`_. #. Some improvements. **0.14.1 (Dec 19, 2020)** #. Update bundled zstd source code from v1.4.5 to `v1.4.8 <https://github.com/facebook/zstd/releases/tag/v1.4.8>`_. * v1.4.6 is a non-public release for Linux kernel. * v1.4.8 is a hotfix for `v1.4.7 <https://github.com/facebook/zstd/releases/tag/v1.4.7>`_. #. Some improvements, no API changes. **0.13.0 (Nov 7, 2020)** #. ``ZstdDecompressor`` class: now it has the same API and behavior as BZ2Decompressor / LZMADecompressor classes in Python standard library, it stops after a frame is decompressed. #. Add an ``EndlessZstdDecompressor`` class, it accepts multiple concatenated frames. It is renamed from previous ``ZstdDecompressor`` class, but ``.at_frame_edge`` is ``True`` when both the input and output streams are at a frame edge. #. Rename ``zstd_open()`` function to ``open()``, consistent with Python standard library. #. ``decompress()`` function: * ~9% faster when: there is one frame, and the decompressed size was recorded in frame header. * raises ZstdError when input **or** output data is not at a frame edge. Previously, it only raise for output data is not at a frame edge. **0.12.5 (Oct 12, 2020)** No longer use `Argument Clinic <https://docs.python.org/3/howto/clinic.html>`_, now supports Python 3.5+, previously 3.7+. **0.12.4 (Oct 7, 2020)** It seems the API is stable. **0.2.4 (Sep 2, 2020)** The first version upload to PyPI. Includes zstd `v1.4.5 <https://github.com/facebook/zstd/releases/tag/v1.4.5>`_ source code.